User Accessed Suspicious URL Categories

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Id	fb0f4a93-d8ad-4b54-9931-85bdb7550f90
Rulename	User Accessed Suspicious URL Categories
Description	Creates an incident in the event the requested URL accessed by the user has been identified as Suspicious, Phishing, or Hacking.
Severity	Medium
Tactics	InitialAccess CommandAndControl
Techniques	T1566 T1071
Required data connectors	SyslogAma
Kind	Scheduled
Query frequency	1h
Query period	1h
Trigger threshold	0
Trigger operator	gt
Source Uri	https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/SymantecProxySG/Analytic Rules/UserAccessedSuspiciousURLCategories.yaml
Version	1.0.5
Arm template	fb0f4a93-d8ad-4b54-9931-85bdb7550f90.json

KQL

SymantecProxySG
| mv-expand cs_categories
| where cs_categories has_any ("Suspicious","phishing", "hacking")
| summarize StartTime = min(TimeGenerated), EndTime = max(TimeGenerated), count() by sc_filter_result, cs_userdn, c_ip, cs_host, Computer,  tostring(cs_categories)

YAML

status: Available
id: fb0f4a93-d8ad-4b54-9931-85bdb7550f90
query: |
  SymantecProxySG
  | mv-expand cs_categories
  | where cs_categories has_any ("Suspicious","phishing", "hacking")
  | summarize StartTime = min(TimeGenerated), EndTime = max(TimeGenerated), count() by sc_filter_result, cs_userdn, c_ip, cs_host, Computer,  tostring(cs_categories)  
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/SymantecProxySG/Analytic Rules/UserAccessedSuspiciousURLCategories.yaml
description: |
    'Creates an incident in the event the requested URL accessed by the user has been identified as Suspicious, Phishing, or Hacking.'
name: User Accessed Suspicious URL Categories
relevantTechniques:
- T1566
- T1071
entityMappings:
- entityType: Account
  fieldMappings:
  - identifier: FullName
    columnName: cs_userdn
- entityType: Host
  fieldMappings:
  - identifier: FullName
    columnName: Computer
- entityType: IP
  fieldMappings:
  - identifier: Address
    columnName: c_ip
triggerThreshold: 0
severity: Medium
requiredDataConnectors:
- datatypes:
  - Syslog
  connectorId: SyslogAma
queryFrequency: 1h
queryPeriod: 1h
version: 1.0.5
kind: Scheduled
tactics:
- InitialAccess
- CommandAndControl
triggerOperator: gt

ARM

{
  "$schema": "https://schema.management.azure.com/schemas/2019-04-01/deploymentTemplate.json#",
  "contentVersion": "1.0.0.0",
  "parameters": {
    "workspace": {
      "type": "String"
    }
  },
  "resources": [
    {
      "apiVersion": "2024-01-01-preview",
      "id": "[concat(resourceId('Microsoft.OperationalInsights/workspaces/providers', parameters('workspace'), 'Microsoft.SecurityInsights'),'/alertRules/fb0f4a93-d8ad-4b54-9931-85bdb7550f90')]",
      "kind": "Scheduled",
      "name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/fb0f4a93-d8ad-4b54-9931-85bdb7550f90')]",
      "properties": {
        "alertRuleTemplateName": "fb0f4a93-d8ad-4b54-9931-85bdb7550f90",
        "customDetails": null,
        "description": "'Creates an incident in the event the requested URL accessed by the user has been identified as Suspicious, Phishing, or Hacking.'\n",
        "displayName": "User Accessed Suspicious URL Categories",
        "enabled": true,
        "entityMappings": [
          {
            "entityType": "Account",
            "fieldMappings": [
              {
                "columnName": "cs_userdn",
                "identifier": "FullName"
              }
            ]
          },
          {
            "entityType": "Host",
            "fieldMappings": [
              {
                "columnName": "Computer",
                "identifier": "FullName"
              }
            ]
          },
          {
            "entityType": "IP",
            "fieldMappings": [
              {
                "columnName": "c_ip",
                "identifier": "Address"
              }
            ]
          }
        ],
        "OriginalUri": "https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/SymantecProxySG/Analytic Rules/UserAccessedSuspiciousURLCategories.yaml",
        "query": "SymantecProxySG\n| mv-expand cs_categories\n| where cs_categories has_any (\"Suspicious\",\"phishing\", \"hacking\")\n| summarize StartTime = min(TimeGenerated), EndTime = max(TimeGenerated), count() by sc_filter_result, cs_userdn, c_ip, cs_host, Computer,  tostring(cs_categories)\n",
        "queryFrequency": "PT1H",
        "queryPeriod": "PT1H",
        "severity": "Medium",
        "status": "Available",
        "subTechniques": [],
        "suppressionDuration": "PT1H",
        "suppressionEnabled": false,
        "tactics": [
          "CommandAndControl",
          "InitialAccess"
        ],
        "techniques": [
          "T1071",
          "T1566"
        ],
        "templateVersion": "1.0.5",
        "triggerOperator": "GreaterThan",
        "triggerThreshold": 0
      },
      "type": "Microsoft.OperationalInsights/workspaces/providers/alertRules"
    }
  ]
}